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Authored by Justyna Bartusiak
Chemistry
1st Grade
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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
K2O to tlenek
sodu
kadmu
potasu
potasu(I)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
K2O to tlenek
sodu
kadmu
potasu
potasu(I)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
P4O10 to tlenek
fosforu
fosforu (III)
fosforu (X)
fosforu (V)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wzór sumaryczny tlenku ołowiu (IV) to
Pb2O
PbO2
Pb2O4
PbO
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reakcję otrzymywania tlenku miedzi (II) przedstawia równanie:
Cu + O2 → CuO
Cu + O2 → Cu2O
2Cu + O2 → Cu2O
2Cu + O2 → 2CuO
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
wzór tlenku węgla IV
CO
CO2
C2O
C2O2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
wzór wody (tlenku wodoru)
HO
H2O
HO2
H2O2
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